YOGY is a web-based resource for retrieving orthologous proteins from ten eukaryotic organisms and one prokaryote:
Homo sapiens, Mus musculus, Rattus norvegicus, Arabidopsis thaliana,
Dictyostelium discoideum, Drosophila melanogaster, Caenorhabditis elegans,
Plasmodium falciparum, Escherichia coli, Schizosaccharomyces pombe,
and Saccharomyces cerevisiae.
Using a gene or protein identifier from any of these organisms as a query, this
database provides comprehensive, combined information on orthologs in other species
using data from five independent resources: KOGs, Inparanoid, Homologene, OrthoMCL,
and a table of curated orthologs between budding yeast and fission yeast.

Associated Gene Ontology (GO) terms of orthologs can also be retrieved for functional
inference.
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